夏热冬暖地区乡村建筑立体绿化节能改造性能研究  

Study on the energy-saving renovation performance of rural buildings based on three-dimensional greening in hot summer and warm winter areas

作　　者：刘晓勤[1] 刘龙斌 丁云飞[3] 黄任[3] LIU Xiaoqin;LIU Longbin;DING Yunfei;HUANG Ren(Institute of Civil Engineering,Huzhou Vocational&Technical College,Huzhou 313000,China;Guangdong Province Architectural Design and Research Institute,Guangzhou 510010,China;School of Civil Engineering,Guangzhou University,Guangzhou 510006,China)

机构地区：[1]湖州职业技术学院建筑工程学院,浙江湖州313000 [2]广东省建筑设计研究院,广东广州510010 [3]广州大学土木工程学院,广东广州510006

出　　处：《西安理工大学学报》2020年第1期33-40,共8页Journal of Xi'an University of Technology

基　　金：国家自然科学基金面上项目(51878187)。

摘　　要：夏热冬暖地区既有乡村建筑围护结构热工性能较差,室内热环境不佳,空调使用能耗高,在新农村建设工程中有必要对其进行绿色节能改造。立体绿化能够有效利用原有建筑结构,实现建筑低成本的节能改造。搭建了立体绿化热工性能对比测试室,对夏热冬暖地区屋顶绿化及垂直绿化围护结构的热工性能进行了测试;建立了既有乡村建筑能耗分析模型,分析了其围护结构在不同绿化形式下的节能改造效果。结果显示:与普通屋面相比,绿化屋面内外表面温度更稳定,其屋面内表面温度最高下降4.4℃,屋面外表面最高下降16.8℃,逐时空调负荷最大值减小14.79%,空调季耗冷量减小15.85%;与普通墙体相比,采用附架式垂直绿化时,墙体外表面风速和太阳辐照度分别减少了80%和90%,逐时空调负荷最大值减小16.32%,空调季耗冷量减小16.62%;如同时采用屋面绿化及墙体垂直绿化,逐时空调负荷最大值减小32.26%,空调季耗冷量减小33.90%。In the hot summer and warm winter area,the thermal performance of the rural building envelope is poor,the indoor thermal environment is not good,and the energy consumption of air conditioning is high.It is necessary to carry out green energy-saving renovation in the new rural construction project.Three-dimensional greening can effectively use the original building structure to achieve the low-cost energy-saving renovation of the building.A three-dimensional greening thermal performance comparison test room was built by which to test the thermal performance of the roof greening and vertical greening enclosure in the hot summer and warm winter area.The energy analysis model of the existing rural buildings was established,with the energy-saving retrofit effect of different greening forms of the envelope structure analyzed.The results show that when roof greening is used,the temperature of the inner and outer surfaces of the roof remains stable relative to the un-greened roof.The inner surface temperature of the roof can be reduced by 4.4℃,the outer surface of the roof can be reduced by 16.8℃,and the maximum hourly load of the roof can be reduced by 14.79%.In the air-conditioning season,the cooling capacity is reduced by 15.85%.When using the vertical greening,the external wind speed and solar irradiance of the wall are attenuated by 80%and 90%,respectively,the maximum hourly load is reduced by 16.32%,and the cooling capacity of the air conditioning season is reduced by 16.62%.At the same time,when roof greening and vertical greening are adopted,the maximum hourly load is reduced by 32.26%and the air-conditioning season cooling capacity is reduced by 33.90%.

关 键 词：立体绿化 乡村建筑 节能改造 能耗 

分 类 号：TU551.1[建筑科学—建筑技术科学]